From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 196717] CPU: 0 PID: 5405 at arch/x86/kvm/mmu.c:717
 mmu_spte_clear_track_bits+0xe7/0x100
Date: Tue, 22 Aug 2017 15:09:22 +0000
Message-ID: <bug-196717-28872-l50oogdMdh@https.bugzilla.kernel.org/>
References: <bug-196717-28872@https.bugzilla.kernel.org/>
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https://bugzilla.kernel.org/show_bug.cgi?id=196717

--- Comment #4 from Jeff Cook (jeff@jeffcook.io) ---
Created attachment 258053
  --> https://bugzilla.kernel.org/attachment.cgi?id=258053&action=edit
full dmesg from boot

dmesg from boot onward, demonstrates this error condition. I've run into this
multiple times on 4.12.3, 4.12.5, 4.13-rc5+git and 4.13-rc6. It does not seem
to occur on 4.11. On 4.13-rc5+git and 4.13-rc6, system impact is greatly
reduced (one QEMU guest remains hung/broken, instead of entire system).

I am using PCI passthrough, etc., as the dmesg shows.

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